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June 13, 2014


Our first real scheduling delay. 
The supplier delivered the wrong under-slab insulation; XPS instead of EPS.
Supplier doesn't have what we need on hand, so it pushes our slab pour out a week.

We want to use EPS to avoid using a nasty chemical blowing agent that is used in the XPS manufacture.  But since the XPS was onsite, we had a tough choice to make; do we use it instead?  What is the negative value compared to the positive value of increased R-value and years of energy savings? Hard position to be in.

Turns out the supplier was charging us a couple grand more for the XPS, so it made sticking to our morals easy.  If only the market always rewarded doing the right thing...

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